Abstract

The concept of mesenchymal stem cells (MSC) being proposed as a medicinal signaling agent is based on the fact that cells are not single molecular agents. MSCs, which more appropriately may be called ‘Living Drug’ molecules, are adaptive agents capable of complex functions involving many bioactive factors. These multi-potent cells may be considered injury-specific drug stores that home to the site of injury and secrete considerable levels of immunomodulatory and trophic factors.

MSCs reduce inflammation, modulate the immune system, as well as stimulate other cells to perform their functions effectively (paracrine properties). In addition, MSCs can function as regulated delivery vehicles and target specific molecules that act against cancerous cells. This could be an interesting avenue of research in cancer immunotherapy, to enhance the outcomes of dendritic and natural killer cell therapies.